Scion Source Effects on the Growth Performance of Grafted Seedlings of Garcinia kola Heckel
A. O. Akinyele
Background and Objective: Most Indigenous Fruit Tree species (IFTs) in the wild are difficult to propagate vegetatively due to physiological incompatibility, among other factors. This could be overcome by using grafting techniques with appropriate selected Mother Trees (MTs) and scion sources. This study was designed to investigate the effects of scion source and mother trees on the early growth performance of grafted seedlings of G. kola. Materials and Methods: Mature seeds of G. kola were collected from Edo State Forest Reserve. The modified Cleft Grafting method was used to graft G. kola with scions from five MTs randomly selected from each of the locations. Total graft survival (%), graft survival per MT (%), plant height (cm), collar diameter (mm) and number of leaves were measured at 14 days interval for six months. Data were analyzed using descriptive statistics and analysis of variance (ANOVA) at 0.05. Results: Seedlings of G. kola grafted with scions collected from Gambari Forest Reserve (GFR) had higher survival with 52%. This can be attributed to the distance of scion collection to the experimental site. The highest survival per MT of G. kola were14.0 and 12.0% in GFR and OLFR respectively and the least per MT of G. kola were 0 and 4% in OLFR and OFR respectively. OLFR had the highest plant height and number of leaves of grafted G. kola seedlings followed by GFR and OFR. OFR had the widest Collar diameter of grafted G. kola seedlings followed by GFR and OLFR. Conclusion: Scion from Gambari Forest Reserve showed high compatibility with the root stock from different sources. Optimum graft survival and growth performance was obtained in Garcinia kola.
Cited References Fulltext